Summary Taiwan conducted the first public test of its indigenously developed Sky Bow II surface-to-air missile May 10. The missile, which is deployed alongside Taiwan's U.S.-made Patriot anti-missile systems, could be the forerunner of a Taiwanese-developed anti-missile missile. Yet Taipei's international isolation and its strategic ties to the United States complicate the island's defense development programs. Analysis The Taiwanese military carried out a live-fire exercise of the indigenously developed Sky Bow II surface-to-air missile (SAM) May 10. The exercise, code-named Magic Arrow 43, was the first public test of the Sky Bow II and took place during the annual large-scale combined services Hankuang 18 exercise, where three U.S.-built Hawk SAMs also were tested. Magic Arrow 43 was both a public demonstration of Taiwan's missile development program and an active test of the Sky Bow II's ability to use the Hawk's radar guidance and target acquisition equipment, according to Taiwanese media.